The invention discloses a system and a method for distributed complex event detection under an RFID (Radio Frequency Identification Devices) equipment network environment. The system comprises a server side, a client side, an RFID recognizer and a label which can be recognized by the recognizer, wherein the server side comprises a used input processing unit, an event analyzing unit, a task queue generating unit, a detection task sharing unit and a task monitoring unit; the client side comprises a task acquisition unit, a task analyzing unit, an event generating unit, an event filtering unit, a task processing unit and a task output unit. Compound event detection under the RFID equipment network environment is realized through event filtering, compound event detection and the event processing of an event aggregate function. The system supports distributed environments, multiple event construction symbols, non-spontaneous events and aggregated events.